Records and testimony gathered from within the Traitors' ranks reveal that the warriors of the Flayed Hand had enthusiastically embraced the new path of their Primarch Lorgar and showed particular interest in various occult rites and practices, and from accounts of the surviving Raven Guard and Salamanders veterans of the Dropsite Massacre of Istvaan V were responsible for a number of atrocities during that conflict, perhaps to fuel this growing obsession. Many among their number volunteered to undergo Erebus' new process for the manufacture of Gal Vorbak Warp-tainted warriors to replace those lost in battle -- a process that met with mixed results. In the years before the outbreak of the Horus Heresy, the Flayed Hand were noted for their intricately planned, multi-pronged assaults and set